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SGM812 - Microprocessor Supervisory

This page provides the datasheet information for the SGM812, a member of the SGM811 Microprocessor Supervisory family.

Description

The SGM811/SGM812 supervisory circuits monitor the power supply voltage in microprocessor and digital systems.

The SGM811/SGM812 are designed to monitor eight different voltages; these voltages have been selected for the effective monitoring of 1.8V, 2.5V, 3V, 3.3V and 5V supply voltage levels.

Features

  • Superior Upgrade for MAX811/MAX812 and ADM811/ADM812.
  • Full Specified over Temperature.
  • Low Power Consumption: 13μA (TYP).
  • Precision Voltage Monitor: 1.8V, 2.5V, 3V, 3.3V and 5V Options.
  • Reset Assertion Down to 1V VCC.
  • 150ms (MIN) Power-On Reset Logic Low nRESET Output (SGM811) Logic High RESET Output (SGM812).
  • Manual Reset Input.
  • Available in Green SOT-143 and SOT-23-5 Packages.

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Datasheet preview – SGM812

Datasheet Details

Part number SGM812
Manufacturer Shengbang Microelectronics
File Size 690.85 KB
Description Microprocessor Supervisory
Datasheet download datasheet SGM812 Datasheet
Additional preview pages of the SGM812 datasheet.

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Full PDF Text Transcription

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SGM811/SGM812 Microprocessor Supervisory Circuits with Manual Reset Input GENERAL DESCRIPTION The SGM811/SGM812 supervisory circuits monitor the power supply voltage in microprocessor and digital systems. The SGM811/SGM812 are designed to monitor eight different voltages; these voltages have been selected for the effective monitoring of 1.8V, 2.5V, 3V, 3.3V and 5V supply voltage levels. They provide a reset output during power-up, powerdown and brownout conditions. On power-up, an internal timer holds reset asserted for 240ms. This holds the microprocessor in a reset state until conditions have stabilized. The nRESET output remains operational with VCC as low as 1V. The SGM811 provides an active low reset signal (nRESET) while the SGM812 provides an active high signal (RESET) output.
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